/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/SessionsCommon.h
FSessionInvitecommon
FSessionInviteCommon ( const [FAccountId](API\Runtime\CoreOnline\Online\FAccountId) & InRecipientId, const [FAccountId](API\Runtime\CoreOnline\Online\FAccountId) & InSenderId, const [FSessionInviteId](API\Runtime\CoreOnline\Online\FSessionInviteId) & InInviteId, const [FOnlineSessionId](API\Runtime\CoreOnline\Online\FOnlineSessionId) & InSessionId )